System and method for photoplethysmogram (PPG) signal quality assessment

US10575786B2 · kind B2 · utility

Assignee

• Tate Consultancy Services Limited · IN

Inventors

• Shahnawaz Alam · Sherghati, IN
• Shreyasi Datta · Sherghati, IN
• Anirban Dutta Choudhury · Sherghati, IN
• Arpan Pal · Sherghati, IN

Key dates

• Filing date: Mar 6, 2018
• Grant date: Mar 3, 2020
• Expiry date: Sep 19, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G16H50/70
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

This disclosure relates generally to PPG signal quality assessment, and more particularly to, a system and method for sensor agnostic PPG signal quality assessment using morphological analysis. In one embodiment, a method for PPG signal quality assessment includes obtaining a PPG signal captured using a testing device in real-time, and segmenting into a first plurality of PPG signal samples such that length of each of the first plurality of PPG signal samples more than a threshold length. A signal sufficiency check (SSC) is performed for each first PPG signal sample to obtain at least a first set of PPG signal samples complying with the SSC. A set of features is extracted from the first set of PPG signal samples, based on which each PPG signal sample is identified as one of a noisy and clean signal sample using a plurality of Random Forest (RF) models created during the training phase.